| Standard label: | Embedded Derivative, Gain on Embedded Derivative |
| Name: | us-gaap:EmbeddedDerivativeGainOnEmbeddedDerivative |
| Documentation: | Increase in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:EmbeddedDerivativeGainOnEmbeddedDerivative |
| Label | Role | Language |
| Embedded Derivative, Gain on Embedded Derivative | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 15 | http://www.xbrl.org/2009/role/commonPracticeRef | 815 |
| Part Of Roll Up: |
| us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet |